Package Units/Assemblies are multi-purpose units having flexibility of utility. These units have been standardrised by incorporating all basic & essential features such as heating,stirring,condensation,fractionation,cooling,etc. for multipurpose use. Therefore, though termed "Packaged Units" from constructional viewpoints they actually serve as "Flexi Units" from utility point of view. These units find use in educational instuations, R&D centres and industries. They can be conveniently and quickly modified according to specific process need due to modular contruction, borosilicate glass offers additional benefits of universal corrosion resistance, visibility amd cleanliness.